Glass Vessel Sink Mounting Ring Light (Green) Introducing a new, low cost, simple, and effective way to illuminate your glass vessel sinks. Purchase the mounting ring light and anyone passing by will stop to take a look at your bathroom. Make the colors and design of the glass vessel sink stand out and show off your bathroom. Comes in a variety of colors to compliment and illuminate your sink. 12v DC is recommended, using 12 volts will give you double the brightness.